package cn.file.test;

import java.io.*;

public class NewTry {
    public static void main(String args[]){
    try(InputStream fis=new FileInputStream("qing.txt");
        OutputStream fos=new FileOutputStream("qingqing.txt",true)){
        FileUtils.streamUtils(fis,fos);

    }catch (IOException e){
        e.printStackTrace();
    }
    }

}
